Question

I need to know as soon as possible!! thanks

Answer 1

90-11=79
79=2m+m+7
79=3m+7
79-7=3m
72=3m
72/3=3m/3

24=m

Answer 2

m = 24

Explanation:

m + 7° + 2m + 11° = 90°

3m + 18° = 90°

3m = 90°- 18°

3m = 72

(divide both sides by 3)

therefore : m = 24